65680280

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11813}}^1$

素因数の和:11963

約数の個数: 32

約数和(自身を含む): 148856400

約数和(自身を除く): 83176120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 11813, 23626, 47252, 59065, 94504, 118130, 236260, 472520, 1642007, 3284014, 6568028, 8210035, 13136056, 16420070, 32840140, 65680280]

約数ペア:

[(1, 65680280), (2, 32840140), (4, 16420070), (5, 13136056), (8, 8210035), (10, 6568028), (20, 3284014), (40, 1642007), (139, 472520), (278, 236260), (556, 118130), (695, 94504), (1112, 59065), (1390, 47252), (2780, 23626), (5560, 11813)]